Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." - Illustration by Leah Abucayan/Alberto Mier/CNN Baland Jalal lay in bed terrified, ...

Have you ever opened your eyes in the middle of the night and realized you could not move a single part of your body? Your brain feels awake, but your arms, legs, even your voice, feel locked. Some ...

Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory consolidation Disorders: ...

Nightmares, insomnia and sleep paralysis inspire in many a trip to the refrigerator or a few hours with a soothing book. When SUNY Cortland senior Melissa Kummrow of DeRuyter, N.Y., awakes in the dark ...

This post is written by Netra Kothari, Human Resource Intern, Monk Prayogshala, Mumbai, India. You’re asleep — at least, you thought you were. You’re in the dark in your bedroom and unexpectedly feel ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Baland Jalal lay in bed terrified ...

(CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Baland Jalal lay in bed terrified, experiencing his own real-life horror ...

(CNN) — Baland Jalal lay in bed terrified, experiencing his own real-life horror film. Newly awake, the 19-year-old could see his surroundings but couldn’t move or speak, and he didn’t know why. He ...

(CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. CNN — (CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our ...